The Liberty Platinum sound system is perfect for sound projection in indoor or outdoor settings and playing music during school activities. The unit delivers 110dB of intelligible speech from one sound system designed for users with no technical knowledge. The Liberty is truly versatile with true AC operation and a 110/220 power supply. Options include built-in CD/MP3 player and up to two UHF wireless receivers. The system is ideal for schools, hotels and places of worship.